What is an energy diagram in chemistry?

Energy diagrams are diagrams that show the amount of relative potential energy in each step of a reaction. Energy diagrams typically include: the reactants, transition states, and products (although depending on the reaction can include more information such as intermediates, activation energy, etc.)

What is activation energy in a chemical equation?

The Activation Energy (Ea) – is the energy level that the reactant molecules must overcome before a reaction can occur.

How do you find activation energy from a graph?

Determining Activation Energy. Notice that when the Arrhenius equation is rearranged as above it is a linear equation with the form y = mx + b; y is ln(k), x is 1/T, and m is -Ea/R. The activation energy for the reaction can be determined by finding the slope of the line.

What is the activation energy quizlet?

activation energy. The amount of energy required to cause a chemical reaction;specifically the energy required to reach the transition state.

What does activation energy tell us?

The activation energy of a particular reaction determines the rate at which it will proceed. The higher the activation energy, the slower the chemical reaction will be. The example of iron rusting illustrates an inherently slow reaction. This reaction occurs slowly over time because of its high EA.

Which definition best describes activation energy?

activation energy, in chemistry, the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.

How do you find activation energy?

Activation Energy Problem

1. Step 1: Convert temperatures from degrees Celsius to Kelvin. T = degrees Celsius + 273.15. T1 = 3 + 273.15.
2. Step 2 – Find Ea ln(k2/k1) = Ea/R x (1/T1 – 1/T2)
3. Answer: The activation energy for this reaction is 4.59 x 104 J/mol or 45.9 kJ/mol.